feat: enterprise-grade Docker setup for Dokploy deployment

- Add multi-stage Dockerfile (node-builder, composer-builder, production)
- Add Nginx config with WebSocket proxy at /_ws path
- Add PHP-FPM pool config, php.ini with OPcache tuning
- Add Supervisord managing 7 processes: php-fpm, nginx, horizon, scheduler, reverb, pulse-check, pulse-work
- Add entrypoint.sh with auto-migration, config caching, storage setup
- Add .dockerignore and .env.production.example
- Install laravel/horizon for production queue management and dashboard
- Install laravel/pulse for production monitoring with Reverb integration
- Configure TrustProxies middleware for HTTPS behind Traefik
- Add horizon:snapshot to scheduler
- Add VITE_REVERB_PATH for WebSocket path routing through Nginx

.dockerignore

@@ -0,0 +1,24 @@
+.git
+.idea
+.vscode
+.agents
+.ai
+.claude
+.gemini
+.junie
+node_modules
+vendor
+npm-debug.log
+yarn-error.log
+.env
+.env.*
+*.md
+!README.md
+storage/logs/*
+storage/framework/cache/*
+storage/framework/sessions/*
+storage/framework/views/*
+tests/
+phpunit.xml
+phpunit.result.cache
+docker-compose.yml